Dr. Tiffany Melissa Diament, MD
- Medicare services, 2024
- 86
- Medicare patients, 2024
- 33
- Part D claims, 2024
- 920
- Industry payments
- $2,638
- Medical groups
- 2
- Practice address
- 510 S Vermont Ave, Los Angeles, CA 90020
- Practice phone
- Call (661) 288-4800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Santa Clarita Valley Mental Health Center
Los Angeles, California
Find Dr. Diament's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Tiffany Melissa Diament is a psychiatrist in Los Angeles, California
Dr. Diament practices at Santa Clarita Valley Mental Health Center in Los Angeles, California.
Dr. Diament's NPI, 1487997128, was assigned on April 1, 2013. Dr. Diament graduated from University of California, Irvine, California College of Medicine in 2013. Dr. Diament holds California license A134062.
- NPI
- 1487997128NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8224348057
- NPI enumeration date
- April 1, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (661) 288-4800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Tiffany Melissa Diament practices at Santa Clarita Valley Mental Health Center in Los Angeles, California
Dr. Diament's primary practice is Santa Clarita Valley Mental Health Center, at 510 S Vermont Ave, Los Angeles, CA 90020 in Los Angeles County. The practice phone is (661) 288-4800.
- Santa Clarita Valley Mental Health Center510 S Vermont Ave, Los Angeles, CA 90020 · Los Angeles CountyPhone(661) 288-4800
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Tiffany Melissa Diament is affiliated with 1 site of care and 2 medical groups
Dr. Diament's primary practice is Santa Clarita Valley Mental Health Center in Los Angeles, California. The medical group on file is Harbor-UCLA Medical Center. Dmand AI also links Dr. Diament to 1 more medical group, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Tiffany Melissa Diament's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Diament practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Santa Clarita Valley Mental Health Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Tiffany Melissa Diament is one of 6,803 psychiatrists in California
Psychiatry is Dr. Diament's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Diament is licensed in California.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
Psychiatrists near Dr. Diament
Counts of psychiatrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Tiffany Melissa Diament billed Medicare for 86 services in 2024
CMS data shows 86 Medicare services from Dr. Diament across 3 procedure codes in 2024, all of them office visits, for 33 Medicare patients. Medicare paid $9,373 for them. Every service was in an office.
Dr. Diament's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1202024: 8628%
Dr. Diament compared with the California median for psychiatrists, 2024
- Dr. Diament
- California median
- Medicare services
- 86vs 11928% below
- Medicare patients
- 33vs 4120% below
- Part D claims
- 801vs 1445.6 times
Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.
Dr. Diament's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Diament and other psychiatrists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Tiffany Melissa Diament treated 33 Medicare patients in 2024, average age 55
CMS counts 33 Medicare patients who saw Dr. Diament in 2024. 75% of them have high cholesterol, and 75% have mood disorders. Their average risk score is 0.96, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Diament's median patient age at 42, with 49% women.
Dr. Diament's Medicare patients by sex, 2024
- Women2267%
- Men1133%
Chronic conditions among Dr. Diament's Medicare patients, 2024
- High cholesterol75%
- Mood disorders75%
- Depression64%
- Anxiety55%
- High blood pressure55%
Share of Medicare patients with each condition. A patient can have several.
Dr. Diament's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 42
Patient panel by sex, all payers
- Women49%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Tiffany Melissa Diament wrote 920 Medicare Part D claims in 2024
In 2024, Dr. Diament wrote 920 Medicare Part D claims for 62 patients. 90% of them were for generic drugs. CMS names the drug for 801 of them, across 28 drugs with 11 or more claims each, at $341,812 in total drug cost. In 2023, CMS named 1,117 claims across 34 drugs.
Dr. Diament's Part D claims by kind of drug, 2024
- Generic828 claims90%
- Brand-name92 claims10%
Dr. Diament's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Diament's Part D claims, 2024
- Antipsychotics, patients 65 and over8%76 of 920 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,1172024: 80128%
Drugs named by CMS: 28 in 2024, 34 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Tiffany Melissa Diament offers telehealth to Medicare patients
Dr. Diament accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Diament as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Tiffany Melissa Diament received $2,638 in industry payments from 2017 to 2020
CMS Open Payments shows 143 general payments to Dr. Diament from 11 drug and device companies from 2017 to 2020. Food and beverage make up the largest share, 100% of the total. Alkermes, Inc. paid the most, $912.
General payments to Dr. Diament by program year, 2017 to 2020
General payments to Dr. Diament by kind, 2017 to 2020
- Food and beverage$2,631100%
- Education$70%
Companies that paid Dr. Diament the most, 2017 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Tiffany Melissa Diament graduated from University of California, Irvine, California College of Medicine
Dr. Diament graduated from University of California, Irvine, California College of Medicine in 2013.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Tiffany Melissa Diament's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Tiffany Melissa Diament
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Tiffany Melissa Diament's NPI number?
Dr. Tiffany Melissa Diament's NPI number is 1487997128. It was assigned on April 1, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Tiffany Melissa Diament?
Dr. Tiffany Melissa Diament is a psychiatrist in Los Angeles, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Tiffany Melissa Diament practice?
Dr. Diament practices at 510 S Vermont Ave, Los Angeles, CA 90020. Dr. Diament's primary practice is Santa Clarita Valley Mental Health Center in Los Angeles, California. Dmand AI also links Dr. Diament to 1 medical group.
What is Dr. Tiffany Melissa Diament's office phone number?
The practice phone on file for Dr. Diament is (661) 288-4800.
What is Dr. Tiffany Melissa Diament's medical license number?
Dr. Diament holds California license A134062.
What medical group is Dr. Tiffany Melissa Diament part of?
Dr. Diament is linked to Harbor-UCLA Medical Center. Dmand AI links Dr. Diament to 1 more medical group.
Does Dr. Tiffany Melissa Diament accept Medicare?
Yes. CMS data shows Dr. Diament billed Medicare for 86 services in 2024, and Dr. Diament accepts Medicare assignment.
Does Dr. Tiffany Melissa Diament offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Diament as offering telehealth services.
How many Medicare patients does Dr. Tiffany Melissa Diament see?
CMS counts 33 Medicare patients who saw Dr. Diament in 2024, with an average age of 55.
What services does Dr. Tiffany Melissa Diament bill to Medicare?
In 2024, Dr. Diament's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99215) and office visit, established patient (99213).
Show 4 more questionsShow fewer questions
Where did Dr. Tiffany Melissa Diament go to medical school?
Dr. Diament graduated from University of California, Irvine, California College of Medicine in 2013.
What drugs does Dr. Tiffany Melissa Diament prescribe most?
In 2024 Medicare Part D data, Dr. Diament's most prescribed drugs by claims were Quetiapine Fumarate, Sertraline HCl and Lurasidone HCl.
Has Dr. Tiffany Melissa Diament received payments from drug or device companies?
CMS Open Payments shows $2,638 in general payments to Dr. Diament from 11 companies from 2017 to 2020. The largest total came from Alkermes, Inc.
How long has Dr. Tiffany Melissa Diament been practicing?
Dr. Diament graduated from medical school in 2013, 13 years ago.
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